UTM_SWMM_KAMAL
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Transcript of UTM_SWMM_KAMAL
Modelling Urban Runoff Quantity using Storm Water Storm Water Management (SWMM)
Prepared byKamal Ahmed
(PA123084)
SupervisorDr. Shamsuddin Shahid
Introductiono EPA's Storm Water Management Model (SWMM) is used throughout
the world for planning, analysis and design related to stormwater runoff, combined and sanitary sewers, and other drainage systems in urban areas.
o SWMM is a comprehensive hydrological and water quality simulation model used for single or continuous events of runoff in urban areas.
o Stormwater monitoring programs in urban catchment are crucial for characterizing the quality of stormwater runoff and formulate effective pollution control strategy.
o SWMM tracks the flow rate, flow depth, and quality of water in each pipe and channel during a simulation period made up of multiple time steps.
Introduction SWMM 5 has recently been extended to model the
hydrologic performance of specific types of low impact development (LID) controls.
The LID controls that the user can choose include the following seven green infrastructure practices:o Bio-Retension cell o Rain gardenso Green roofso Street planterso Rain barrelso Infiltration trencheso Vegetative swales
Model parameterization SWMM requires three major information for runoff quantity
modelling: (1) Physical Catchment Characteristics(2) Rainfall(3) Infiltration
The physical catchment data are (a) Total catchment area (A)(b) Percentage of impervious area (%Imp)(c) Catchment width (W)(d) Average slope (So)(e) Surface depression storage (f) Surface roughness
Study Area
Parking Lots
Landuse
Catchments
Sub catchment Area Width Slope
S1 103 597 4
S2 41 377 3
S3 59 750 7
S4 53 592 8
S5 17 520 2
S6 11 347 2
S7 42 705 1
S8 34 259 2
Sub catchment Area Width SlopeS1 103 597 4
S2 41 377 3
S3 59 750 7
S4 53 592 8
S5 17 520 2
S6 11 347 2
S7 42 705 1
S8 34 259 2
Horton Infiltration
Junction Invert Elevation
J1 29
J2 23
J3 21
J4 18
J5 17
O 16
Conduits Length
C1 2404
C2 2204
C3 1295
C4 1584
C5 4159
THANK YOU